I read a lot of online reviews, and there are slews of them where people report receiving counterfeit. I see this all the time with thumb drives, which a smaller one being sold as a larger one.

Staples and other outlets are selling a Lenovo ThinkPad USB 3.0 Secure External Hard Drive, 2TB. Model is 4XB0K83868. Odd thing, though, is I checked the Lenovo site and they don't list a 2TB drive. The largest is 1TB.